Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:5: error: ‘ifstream’ was not declared in this scope ifstream fin; ^ user.cpp:6:5: note: suggested alternative: In file included from /usr/include/c++/4.8/ios:38:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/iosfwd:157:34: note: ‘std::ifstream’ typedef basic_ifstream<char> ifstream; ^ user.cpp:6:14: error: expected ‘;’ before ‘fin’ ifstream fin; ^ user.cpp:7:5: error: ‘fin’ was not declared in this scope fin.open("adunare.in"); ^ user.cpp:14:5: error: ‘ofstream’ was not declared in this scope ofstream fout("adunare.out"); ^ user.cpp:14:5: note: suggested alternative: In file included from /usr/include/c++/4.8/ios:38:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/iosfwd:160:34: note: ‘std::ofstream’ typedef basic_ofstream<char> ofstream; ^ user.cpp:14:14: error: expected ‘;’ before ‘fout’ ofstream fout("adunare.out"); ^ user.cpp:15:5: error: ‘fout’ was not declared in this scope fout << a; ^